83003702.K Operating Instruction
Type KPC 108-L-U/S
page 113
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13
Switch gear
The switch box is fully installed, connected and complies with the technical requirements of the VDE 0113.
For parts see wiring diagram.
The unit is switched on by means of the master switch.
When the master switch is turned to Pos 1 the water pump is started and, should the thermostat require cooling, the
compressor is turned on.
In order to prevent the compressor from being switched on for short intervals, the time-delay relay hinders the start
procedure. After the time has passed by and the compressor has been at a standstill, i.e. after a pause of approx. 1
minute, the refrigeration process will commence immediately if the thermostat has switched it on.
Wiring diagram
enclose
switch box
13.1
Remote control panel
See 2.1 and 2.2
13.1.1
Collective alarm
The red warning lamp in the door lights up when one of the safety sensors has been triggered. The cause of the error
can be identified more exactly by means of the LEDs in the door of switch geart. For the purpose of external evaluation
of the error signal, the collective alarm message can be accessed, potential-free, from the terminal. (See also wiring
diagram)
14
Safety notes
14.1 Notes for refrigerant
R 134a
R 407C
R 404A
1,1,1,2 Tetraflourethane F3C-CH2F
≥99 %
1,1,1,2 Tetraflourethane F3C-CH2F
52 %
Pentafluorethane F3C- CHF2
25 %
Difluormethane CH2F2
23 %
1,1,1 Trifluorethane F3C- CH3
52 %
Pentafluorethane F3C- CHF2
44 %
1,1,1,2 Tetraflourethane F3C-CH2F
4 %
Possible dangers
Pyrolysis in poisonous and corrosive products:
Hydrogen fluoride, fluorphosgene
Hydrogen fluoride, fluorphosgene possible in
traces
Hydrogen fluoride, carbon dioxide,
fluorphosgene possible in traces
Discharged gas: Emerging liquid can cause freezing
First-aid measures
o
After inhalation: Bring the afflicted person into fresh air and position them comfortably while protecting
yourself. Call doctor. Commence mouth-to-mouth resuscitation if breathing has stopped.
o
After skin contact: First leave the caked clothing on the skin. Rinse the cold-damaged areas with lukewarm
(never hot) water. Do not rub! Cover sterilely. Seek medical treatment.
o
After contact with eyes: With splashed eyes, rinse out at least 15 minutes with clean water or eyewash
solution. Consult an ophthalmologist.
